气候变化领域集成服务门户(CCPortal): Forest structure and biomass reflects the variable effects of fire and land use 15 and 29 years following fire in the western Cascades, Oregon

CCPortal

DOI	10.1016/j.foreco.2019.117570
	Forest structure and biomass reflects the variable effects of fire and land use 15 and 29 years following fire in the western Cascades, Oregon
	Kauffman J.B.; Ellsworth L.M.; Bell D.M.; Acker S.; Kertis J.
发表日期	2019
ISSN	0378-1127
卷号	453
英文摘要	The mixed severity fire regime of western Oregon forests creates a complex post-fire landscape mosaic with patches of low, moderate and high overstory tree mortality. Conversion of old-growth forests into plantations and post-fire salvage logging are widespread land uses that dramatically affect structure, biomass and carbon stocks. Few studies, however, have quantified the complex responses to wildfire and land management (i.e. logging and post-fire salvage logging) over long time periods. We quantified total aboveground biomass and composition in forest stands following low, moderate, and high severity fires 15 (2002 Apple Fire) and 29 years (1991 Warner Creek Fire) following fire in low elevation, old-growth forests dominated by Douglas-fir (Pseudotsuga menziesii). We also sampled post-fire responses in forest plantations (harvested prior to fire) and salvage-logged sites (harvested after fire) in the same fires. Fire severity had dramatic effects on the partitioning of total aboveground biomass (TAGB). Most of the TAGB in high severity fires was sequestered in dead trees (>43%) and downed wood (>29%) while live trees comprised the largest component of TAGB (>62%) in low severity fires. In spite of differences in overstory mortality, there was no significant difference in the TAGB between the low, moderate and high severity fires 15 years following fire (Apple Fire). Similarly, there was no significant difference between the low and high severity burns 29 years following fire (Warner Creek Fire). Managed forests (salvage and plantations) had significantly lower post-fire aboveground biomass and carbon storage that the natural forests. The TAGB of salvage logged sites was 49% and 42% that of the high severity sites at the Apple Fire and Warner Creek Fire, respectively. The mean TAGB of plantations was lowest of all fire and land use scenarios. At the Warner Creek Fire, TAGB of the plantations were <30% of that of the high severity fire sites (e.g. 326 and 984 Mg ha−1, respectively). This equates to a difference in aboveground carbon in the managed compared to the natural stands of 553 Mg CO2e ha−1 at the Apple Fire and 781 Mg CO2e ha−1 at the Warner Creek Fire. This research highlights the management tradeoffs involving values relating to carbon storage and wood harvest following fires. © 2019 Elsevier B.V.
英文关键词	Fire ecology; Fire effects; Forest carbon stocks; Forest succession; Mixed-severity fire regimes; Total aboveground biomass
语种	英语
scopus关键词	Biomass; Ecology; Forestry; Fruits; Harvesting; Land use; Magnesium; Above ground biomass; Fire ecology; Fire effect; Fire regimes; Forest carbons; Forest succession; Fires; aboveground biomass; carbon sequestration; fire; fire behavior; forest management; habitat mosaic; land use change; landscape ecology; logging (timber); mortality; old-growth forest; overstory; phytomass; plantation forestry; salvaging; severe weather; stand structure; succession; temporal analysis; wildfire; Biomass; Ecology; Forestry; Fruits; Harvesting; Land Use; Cascade Range; United States; Malus x domestica; Pseudotsuga; Pseudotsuga menziesii
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155746
作者单位	Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR 97331, United States; Pacific Northwest Research Station, USDA Forest Service, Corvallis, OR 97331, United States; Northwest Oregon Ecology Program, Mt. Hood National Forest, 16400 Champion Way, Sandy, OR 97055, United States; Siuslaw National Forest, USDA Forest Service, Corvallis, OR 97331, United States
推荐引用方式 GB/T 7714	Kauffman J.B.,Ellsworth L.M.,Bell D.M.,等. Forest structure and biomass reflects the variable effects of fire and land use 15 and 29 years following fire in the western Cascades, Oregon[J],2019,453.
APA	Kauffman J.B.,Ellsworth L.M.,Bell D.M.,Acker S.,&Kertis J..(2019).Forest structure and biomass reflects the variable effects of fire and land use 15 and 29 years following fire in the western Cascades, Oregon.Forest Ecology and Management,453.
MLA	Kauffman J.B.,et al."Forest structure and biomass reflects the variable effects of fire and land use 15 and 29 years following fire in the western Cascades, Oregon".Forest Ecology and Management 453(2019).